S-Specs
| Processor Speed (MHz) | Input Clock (MHz) | Voltage Center (V) | Voltage Range (V) | Part Number | Clock Multiplier | S-Spec Number |
|---|---|---|---|---|---|---|
| 75 | 25 X 3 | 3.3 | 3.1 - 3.6 | FC80486DX4-75 | 3X mode only | SK052, SX883 |
| 100 | 33 X 3 | 3.3, 3.45 | 3.1 - 3.6 | FC80486DX4-100 | 3X mode only | SX906 |
| 100 | 33 X 3 / 50 X 2 | 3.45 | 3.3 - 3.6 | FC80486DX4-100 | 3X or 2X mode | SX876 |
| 100 | 33 X 3 / 50 X 2 | 3.3, 3.45 | 3.1 - 3.6 | FC80486DX4-100 | 3X or 2X mode | SK053 |
| 75 | 25 X 3 | 3.3 | 3.1 - 3.6 | A80486DX4-75 | 3X mode only | SK047, SX884 |
| 100 | 33 X 3 | 3.45 | 3.3 - 3.6 | A80486DX4-100 | 3X mode only | SK051, SX900 |
| 100 | 33 X 3 / 50 X 2 | 3.45 | 3.3 - 3.6 | A80486DX4-100 | 3X or 2X mode | SX877 |
| 100 | 33 X 3 / 50 X 2 | 3.3 | 3.1 - 3.6 | A80486DX4-100 | 3X or 2X mode | SK050 |
| 100 | 33 X 3 | 3.45 | 3.3 - 3.6 | A80486DX4WB-100 | 3X mode only | SK096 |
| 100 | 33 X 3 / 50 X 2 | 3.3 | 3.1 - 3.6 | A80486DX4WB-100 | 3X or 2X mode | Limited availability |
| 75 | 25 X 3 | 3.3 | 3.1 - 3.5 | A80486DX4WB-75 | 3X mode only | SK102 |
| 100 | 33 X 3 / 50 X 2 | 3.3 | 3.1 - 3.6 | FC80486DX4WB-100 | 3X or 2X mode | SK099 |
| 75 | 25 X 3 | 3.3 | 3.1 - 3.5 | FC80486DX4WB-75 | 3X mode only | SK100 |
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